linux-kernel - [PATCH] writeback: remove unused variable

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Message-ID: <20200528033740.17269-1-yuchao0@huawei.com>
Date:   Thu, 28 May 2020 11:37:40 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] writeback: remove unused variable

Commit 64081362e8ff ("mm/page-writeback.c: fix range_cyclic writeback
vs writepages deadlock") left unused variable, remove it.

Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 mm/page-writeback.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index a53f4cfa7628..7e9714d2ce9d 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2160,7 +2160,6 @@ int write_cache_pages(struct address_space *mapping,
 	int error;
 	struct pagevec pvec;
 	int nr_pages;
-	pgoff_t uninitialized_var(writeback_index);
 	pgoff_t index;
 	pgoff_t end;		/* Inclusive */
 	pgoff_t done_index;
@@ -2169,8 +2168,7 @@ int write_cache_pages(struct address_space *mapping,
 
 	pagevec_init(&pvec);
 	if (wbc->range_cyclic) {
-		writeback_index = mapping->writeback_index; /* prev offset */
-		index = writeback_index;
+		index = mapping->writeback_index; /* prev offset */
 		end = -1;
 	} else {
 		index = wbc->range_start >> PAGE_SHIFT;
-- 
2.18.0.rc1